[USRP-users] twinrx example

Hi, I am not finding an example to receive data for twinrx case of USRP x300/310. I am looking at the following link: https://github.com/EttusResearch/uhd/tree/master/host/examples

Re: [USRP-users] IOError: x300 fw poke32 - reply timed out

It tooks us a while, but we seem to have found the root cause of the issue. The RAID array which was being fed the data was able to just cope with the dataflow peaks, although the mean dataflow was not a problem. Therefore, when some kind of additional process fired up or some other

[USRP-users] Can I use chained DDCs?

I have a flowgraph where I use 3 different DDCs on an X310. There is a dual DDC that is connected to the two radios on the X310. Then I have 2 single DDCs chained off of that first one. I built these DDCs to only have a single input/output on them. The flowgraph will work, but sometimes

Re: [USRP-users] Bug in timed switching of sample rate

Hi Fabian, Could it be related with this issue I came across too? Have you tried an older version? Regards, Xavier On Fri, 30 Nov 2018 at 18:56, Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com> wrote: > On

Re: [USRP-users] 2955 multiple receivers not working together

Hi Neel, We are using windows version, which installs gnuradio and we don't need to install anything else ourselves further. I didn't find a UHD folder. Is it possible to execute command "uhd_find_devices" in windows also? If so how? Regards, Koyel From:

Re: [USRP-users] rfnoc problem with custom DDC inputs.

Hello Brian, thanks for your answer! I have returned today and I am testing your changes. I am using grc and I have the error: *thread[thread-per-block[0]: ]: LookupError: KeyError: [0/Radio_0] sr_write(): No such port: 18446744073709551615* I assume the error is in the configuration of

Re: [USRP-users] Can I use chained DDCs?

On Mon, Dec 3, 2018 at 11:32 AM Jason Matusiak via USRP-users < usrp-users@lists.ettus.com> wrote: > Actually, upon further review, I can get this to happen with the stock XG > image and as simple flowgraph as possible. > > If I run the stock image as non-RFNoC seems to be fine, so it has >

Re: [USRP-users] X310, basicRX - using all channels in real mode with DDC

I've tried with USRP block instead of RFNoC block (flowgraph attached). For subdev spec I have used A:AB A:BA B:AB B:BA because in other cases uhd fails with : thread[thread-per-block[0]: ]: RuntimeError: On node 0/DDC_0, output port 0 is already connected. For ch1 et ch3 tried A or B without

Re: [USRP-users] Can I use chained DDCs?

Brian, I am not sure what the issue is here. I don't think it is the chained DDC anymore as I can see the issue with the single DDC using multiple different bitfiles. I wasn't re-tuning the Fc anywhere, I was just dropping the sample rate from 120MHz down to something I could handle.

Re: [USRP-users] Can I use chained DDCs?

Actually, upon further review, I can get this to happen with the stock XG image and as simple flowgraph as possible. If I run the stock image as non-RFNoC seems to be fine, so it has something to do with me using RFNoC. I tried switing to HG, but I see the same issues. Has anyone else

Re: [USRP-users] rfnoc problem with custom DDC inputs.

Ok, I had a problem with *radio_block_port. *I had a signed number... :( I think now it runs. I will pass to 1:8 DCC and later with 2:16 DDC. I continue... :) El lun., 3 dic. 2018 a las 16:09, Carlos Alberto Ruiz Naranjo (< carlosruiznara...@gmail.com>) escribió: > Hello Brian, > > thanks for

Re: [USRP-users] Can I use chained DDCs?

Brian, No. I am leaving it alone on startup. I was running off of the rfnoc_devel branch. I just changed to master and am attempting to rebuild with RFNOC enabled to see if something else has been introduced to it. I should try to roll back a version or two and see what that does for me

Re: [USRP-users] Can I use chained DDCs?

Hey Jason, On Mon, Dec 3, 2018 at 11:50 AM Jason Matusiak < ja...@gardettoengineering.com> wrote: > Brian, > > I am not sure what the issue is here. I don't think it is the chained DDC > anymore as I can see the issue with the single DDC using multiple different > bitfiles. > > I wasn't

Re: [USRP-users] Can I use chained DDCs?

Brian, It looks like switching from rfnoc-devel to the head of master cleaned up my issues (Once I realized a clock rate of 120MHz was no longer supported). Not sure what was the problem, but I won't worry about it at this point. I think you are right on the DDC, I will need to look into

Re: [USRP-users] gr-doa

Hi We are working on a  phase interferometer direction finding application using X310 and one twinRx. Our basic model is  to use five channel broadband DF antenna  with a switching matrix which converts RF from  5 channels to  to 2 Channels. So far we able to phase aligned all the channels and